Cold-air blast for the protection of nail-makers



(No Model.)

J. ALTMEYER.

00m) AIR BLAST FOR THE PROTEGTION 0F NAIL MAKERS. No. 317,916.

Patented May 12, 1885.

NITED STATES PATENT rricn.

JACOB ALTMEYER, OF BENWOOD, WEST VIRGINIA.

COLD-AIR BLAST FOR THE PROTECTION OF NAIL-MAKERS.

$PECIPICATION forming part of Letters Patent No. 317,916, dated May 12,1885.

Application filed March 11, 1885.

{[0 aZZ whom, it may concern.-

Be it known that 1, Jason AL'IMEYER, of

Benwood, in the county of Marshall and State of West Virginia, haveinvented a new and useful Improvement in Air-Cooling Apparatus; and I dohereby declare that the following is full, clear, and exact descriptionof the same.

My invention relates to the ventilation and cooling of the airsurrounding the workmen while operating hot nail-machines and theirattachments, and to the protection of the workmen from the heatradiating from the heated iron about 'the machines. It is designedespecially to be used in connection with nailmachines whilemanufacturing steel cut-nails. While manufacturing nails of this classit has been found necessary to heat the plates or blanks from which thenails are cut to a higher degree than has been found necessary in themanufacture of iron nails. As these plates and the nails after they arecut must be near to the workmen, the high degree of heat is painful andinjurious, and from the nature of the work it is impossible to usescreens to shelter the workmen.

My invention consists, essentially, in interposing a sheet of cool airbetween the workmen and the heated iron or other heated ob- 0 jects fromwhich heat is radiated to his person.

. ular description is required. Between these machines, upon the floor,is a pipe, B, which leads from any suitable air-forcing apparatus. Fromthis pipe branch pipes 11 b are led in front of each machine. Both pipesare alike, and a description of onewill suffice for (No model.)

both. Each pipe is joined to the main pipe by flexible connections, sothat it may be thrown around either vertically or horizon tally wheneverit is necessary to remove the nail-box (J. The branch pipe passes underthe foot-rest d on the seat D occupied by the workmen. It is formed withslots or holes, so as to direct a sheet of cool air upward in front ofthe workman and between him and the machine, as well as between him andthe box E, which contains the plates or blanks of steel which are to beused in forming the nails. The end of the pipe is closed; but holes maybe made in other directions for driving the air over the box of nails,if desired.

The sheet of cool air rising up constantly displaces the heated air andinterposes a shield of cool air between the workmen and the heatedobjects, thus tending constantly to keep the workmen shielded from theheat, which would otherwise be painful and injurious.

In order to remove the box of nails, the branch is swung around untilthe box is removed and it can be replaced after the empty box is inposition to receive the nails.

The same arrangement of pipes can be used in front of the nail-heatingfurnace with the same effect, throwing up sheets of cool air in front ofthe workman.

On the branch pipes b b are secured deflector-plates e 6, extending thelength of the nail-boxes and inclining inwardly and upwardly toward themachine, whereby the cool air as it issues from the pipeis directedacross the nail-box and up between the machine and the workman, asrepresented in Fig. 3.

I claim as my invention- The hereinbeforedescribed mode of protectingworkmen upon machines of the class described by passing a sheet of coolair between the workmen and the machine and heated objects,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JACOB ALTMIEYER.

Witnesses:

J. B. THoMPsoN, F. L. MIDDLETON.

